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06-11-2019
Mathematics

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the length of a rectangle is 3 times it’s width. if the perimeter is 56 feet what is the area

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luckyjk0801 luckyjk0801

06-11-2019

Answer:

Step-by-step explanation:

L=3W

P=2L+2W

56=2*3W+2W

56=6W+2W

8W=56

W=56/8

W=7 ANSWER

FOR THE WIDTH.

L=3*7=21 ANS.

FOR THE LENGTH.

PROOF:

56=2*21+2*7

56=42+14

56=56

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